Hydraulic valve.



(if SUTTER a- LLQ- WILLFONG.

V HYDRAULICVALVE.

APPLICATION PIIJ'SDIETB. ll, 1911.

' Patented June 6,1911

INVENTORJ ag aerwLLmlgfbny WITNESSES Y 0 W A TT'ORNE 3 6 g UNITED STATES PATENT OFFICE.

CHARLES SU'I'TER, OF ELIZABETH, AND LEMUEL WILLFONG, OF GL AIRTON, PEN N- SYLVANIA. 7

HYDRAULIC VALVE.

Specification of Letters Patent.

Patented June 6, 1911.

Application filed February 9, 1911. Serial No. 807,507.

the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to hydraulic valves, and the primary object of the invention is to provide a valve of the above type that can be used for various purposes, the valve being constructed upon the principle of a slide valve and the parts thereof arranged whereby easy access can be had to said parts for adjusting and lubricating purposes.

Another object of this invention is to pro vide a threeway hydraulic valve that is positive in its operation and free from injuryb ordinary use.

Wit 1 these and such other objects in view as may hereinafter appear, the invention consists of the novel construction,combination and arrangement of parts to be hereinafter referred to and particularly claimed.

Reference will now be had to the drawing, wherein like numerals of reference designate corresponding parts throughout the several views, in which Figure 1 is a longitudinal sectional view of the valve, Fig. 2 is a vertical cross sectional view of the same, and Fig. 3 is a diagrammatic view showing the valve relatively'to a cylinder.

A valve in accordance with this invention comprises a box-like casing 1 having the bottom 2 thereof'upon the inner side pro vided with a longitudinal seat 3 of less width than the bottom of the box and extending from one end thereof to the opposite end. The bottom 2 of the casing 1 15 provided with a central exhaust port 1 and with two depending bosses 5, said bosses beingprovided with vertical ports 6 and 6* respectively and interiorly screw threaded to receive the ends of pipes 7 and .7 respectively. Detachably mo, nted upon thg upper edges of the casing 1 ing means is a lid or cover 9, and formed integral the ends thereof is an elbowin'cornmuni screws 8 or other fastenwith said lid or cover intermediate of an inlet port 11. The top of the elbow 10 is provided with a detachable plug 12 and arranged in said elbow is a check valve 13,

said check valve being placed within the elbow through the medium of the detachable plug 12.

The side of the casing 1 is provided with a stufling-box 14, and journaled in said stufi' ing-box and extending transversely of the casing 1 is ashaft 15 having a rectangular portion 16 within the casing upon which is mounted a segment-gear 17 said gear being" retained upon the shaft byscrews 18 passing through the hub 19 of said gear. The segment-gear l7 is'adapted to mesh with a longitudinal rack 20, carried by a slide valve 21,

said slide valve having the under side thereof providedwith arecess 22 adapted to establish communication between the ports 4 and 6 'or 1 and '6. The outer end of the shaft 15 is provided with an operating lever 23. a

As an instance of the operation of the valve, we have illustrated in Figure 3 of the drawing the ports 6 and 6 as connected by the pipes and 7 respectively to the lower and upper ends respectively of a cylinder2 1 having a piston arranged therein. With steam or air passing through the elbow 10 and the port 11 into the casing 1, the steam pipe 7 into the lower'end of the cylinder 24: and raise the piston 25, the steam or air above the piston exhausting through the pipe 7*, port 6, recess 22 and port 4:. To lower the piston25, the operating lever 23 is shifted to move the slide valve 21 whereby the recess 22 will establish, communication between the ports 4 and 6. The steam or air will then be deflected into the port 6, through the pipe 7' and enter the upper end ofthe cylinder 24 above the piston 25. The piston 25 will be forced downwardly'and the steam or air beneath said piston will exhaust through the pipe 7 port 6, recess 22 and exhaust port 4:.

By plugging or blanketing one of the ports 6 or 6*,the valve can be used for two-way purposes.

The check valve 13 is provided to prevent This is essential burst and cause a where large or controlled 8 5 or air can pass through the port 6 and the a r 5 cation with the casing 1 through the nediunr bythe. piston 25;-ina'srhuch as asuddii exlid haust of steam from the cylinder 24 would said casing, a slide valve arranged upon cause large bodies to descend: and injure said seat within said casing and provided property and in all probability life. with a recess. adapted to establish com'tnuni- ,20 The valve in its entirety can be made of cation betwn the exhaust port and either 5 light and durable metal andwe reservejthe one ofthe outlet ports of said casing and to right to use such packing as is necessary to uncover the other outlet port, and a rack insure non-leakable connections. carried by said valve and meshing with said What we claim is segment-gear, substantially as, and for the 25' A valve of the type described comprising purpose herein described. 10 a casing having the bottom thereof provided Ln testimony whereof we affix our signawith-a longitudinal valve seat having an exturs in the presence of two witnesses.

haust port and two outlet ports, a lid mounted upon said casing, an elbow carried by said lid and in communication with said J 15 casing, a check valve arranged in. said elbow, \Vitnesses:

a shaft jo'urnaled transversely of said casing, MAX H. SRoLovI'rz,

a segment-gear carried by said shaft within CHRISTINA T. Hoon. 

